Any tips on how to get this working? I installed the plug in from the list, but I get the “WARNING: Failed getting InterfaceStatus from AirplaySpeak - the interface was not found in the list of active interfaces, the list may need to be refreshed.”

Can’t do apt-get since OS X, and not sure I should need to since everything needed should be native?

well, Homeseer is not "officially" supported on Mac OS X and I don't believe anyone ever tried to run the AirplaySpeak plugin on this platform.

I think the solution to the first error you see is to use the Mono.Zeroconf.Providers.Bonjour.dll provided in the windows package instead of the Avahi one and then to add Mono.Zeroconf.Providers.Bonjour.dll.config as explained here: https://stackoverflow.com/questions/...-mono-zeroconf

but then I guess you will run in other problems like the speak_to_file.sh script not working.